488 QUEENSLAND AGRICULTURAL JOURNAL. [1 Noy., 1899. 
European or elsewhere, have I seen such reactions, but merely K yellow. 
Leighton describes two British Lecidex under the names L. subdisciformis and 
“1 which the thalli are rendered yellow, then red by K, but in both 
LL. ryssolea, 1 
the margins of the apothecia are of a pale colour. Again, under the name 
L. subdiscitormis, var. microsperma, Nylander (Syn. Lich. N. Caled. p. 52) gives 
another, the reactions of the thallus of which are presumably yellow, then red ; 
but the spores are only half the length of those of the present lichen. 
There is, in the same packet as the above, another Lecidez whose thallus 
gives a still more pronounced after-reaction, viz. :— 
Lecidea sanguinolenta, Sérm. ‘Uhallus whitish or bluish-white, thin (K yellow, 
then red) ; spores 8, brown, ellipsoid, straight, 1-septate, ‘O1L — 014 x 0055 
—‘007 mm.; paraphyses slender, distinct, with brown clavate apices; hypothecium' 
brown-black, thickish. Epithecium and hypothecium with K rubescent. 
K develops on the fuscous epithecium, but more especially on the 
hypothecium, a reddish purpurascent colour with abundance of reddish acicular 
crystals arranged in stellate groups. In a short time the whole field of the 
microscope is thickly covered with these groups. This seems a common lichen 
throughout Australia. 
Lecidea nodulosa, Strz. Thallus thin, pale or reddish-pale, rimulose with a 
black border (K-C-) ; apothecia black, somewhat coated with a bluish bloom, 
innate-sessile, flat, width ‘5-1 mm.; with acute and prominent margins; spores 
8, oblong-ellipsoid, colourless, irregularly 4-locular or irregularly 3-6 locular, 
‘OLL — O14 x *006— ‘0077 mm.; paraphyses medium, fairly discrete, with black 
clavate apices; hypothecium black, rather thick ; hymenium with iodine intensely 
blue. On rocks. 
The particles contained in the spores are rendered even more distinct by 
K instead of disappearing by it. Accordingly this Lecidea must be reckoned 
near L. postuma, Nyl., and not classified under those of which ZL. contigua’ may 
be said to be the type. 
Graphis subvelata, Strn. Similar to G. intricuta, Eschw., but apothecia rather 
prominent, nude not velate, and with rather large spores; spores (2-4-6-8 P) 
colourless, oblong-ellipsoid, ‘02 —‘03 x *008— ‘009 mm.; 5-7 locular, theloculi once 
or twice divided ; hypothecium colourless ; paraphyses thickish, with brown-black 
clavate apices. Hymenium with iodine scarcely tinted or slightly yellowish red, 
the spores themselves reddish. On bark. . 
The varying number of spores in the thece 1s rather singular. Often 2 or 
4, rarely 6, but, so far as observed, never 8 are seen in each theex. This lichen 
seems to play between G. sophistica and G. intricata. 
Arthonia albofarinosa, Str. Thallus white farinose, thin (K-C) ; apothecia at 
first clothed by the thallus, then breaking through rounded or somewhat irregular, 
small, width to 3 mm.; spores 4-8, colourless, obtusely fusiform, 4-6 septate, 
usually 5-septate,‘018—’027 x 003 —'0 35mm.; paraphyses scarcely any properly 
so-called, irregular, apices brownish-black, thick, conglutinate; hypothecium 
black-brown. Hymenium with iodine faintly biue, then intensely red. Thee 
oblong or oblong-ellipsoid, with hyaline walls not so thick as usual. On_bark. 
The lower part of hypothecium is apt to break off, leaving a fuscous thinnish 
part attached to the paraphyses. ‘The walls of, the thece are tough and not 
easily ruptured. I scarcely know how to classify this lichen, as it is so unlike 
the rest of the tribe. It partakes of characters common to Arthonia and Platy- 
grapha. " 
Verrucaria fibrata, Strz. Thallus maculate, lutescent, shining ; apothecia 
black, prominent, small, width about 2 mm.; parathecium entire, black, beneath 
somewhat flat and thin; spores 8, 1-seriate, colourless, finally brownish, ellipsoid, 
often at both ends apiculate, 4-locular, with large equal locule, the ital one 
small ; ‘v14—-018 x 007—‘01 mm.; paraphyses distinct, thickish. Hymenium 
with iodine not tinted. On bark, 
Endocarpon Baileyi, Strz. 
